Roller-bearing.



0. F. ZAHN. ROLLER BBARXNG. APPLIOATION FILED AUG. 27, 190s.

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Patented Jan. 10, 191i,

Jak www Y NNTTED STATES PATENT OFFICE.

'cswAL-D E. ZAHN, or Los ANGELES, CALIFORNIA, AssIGNOn ro ZAHN snnr RICHTING nOzOLEn BEARING COMrANIr, on Los ANGELES, CALIFORNIA, -A CORPORATION or CAmIfonNIb..

` 'ROLLERFBEARINQ 981,049. Sreieationaf Ltters Pafet Patented-Jan. 10, 1911.l Application aieaaugusta'z,1eos. serial No. y

iIVli-e bearing rollers 3 are provided with Taall whom it-mayconcmr l -Be itknown that I, Osv Ln F. ZAHN, a. means or engaging vthe inner and Outer. 55 citizen oi the United States, sidngat Los bearing members to hold the parts against Anelesain the'cunty'o 'Bos' `I1ge1es` 'State relative... 1ongitudinal displacement. For l of" alifornia, have invented a nngmd usethis purpose' the rollers have annular enful-. Improvement in Roller-Bearings, of largementsorllanges' at or near their ends, ,whichthe following is aspeeication. 5 the outer faces of said flanges forming shoul- G0 The man object of the invent-ion, is 4to ders 9 to engage annular-abutments 10 on v j rovde a.- rollerbearing adaptedfor .heavy the inner bearing member and annular abutoads. j mentsvll on the outer bearing member. To

VAnother objectof thifsinvention is to 'proform these annular' abutments .the inner membersareretaineddn position,' as regards end, w11ose` outerwall. namely, the wall both transverselongitudnalj-movement; farthestv "from midlength of the bearing,v 15 by .the agency "c'iffall'single seb of bearing rollforms thev abutment 10,. and the outer bear-Av ers, and wherein thefendfthrust'as well as ing member has a groove 1 3 near each end the sme froll ,thereby-'n dispensing with? the use of supplementary. devicaswhosesole.

. function is to take-the end thrust.

' A. further.,object ot. the invention -isl .to he outer member is inclined in reversemanf Providearrllb when a` roller.. skew s in,f;the bearing, will edgesor'parts of the rollertla'nges of greater vbring into actionfor'ces tending to right the diameter than the bearing portion of the roller in the bearing-i' f- I rollers. It'is essential th'at the abutmentflO According. to'my invention. the bearing has a diameter not exceeding' the diameter is-Constrwted insuch manner that the fric#v of the bearing surface of inner bearing mem- S0 anmllar7 abut-ment 10 at each end of the innel;l member is`inclined or beveled outwardly nd` the annularabutment 11 at each end of tion'brought into tion, on deflection of the Aber and so it is/preferably made slightly lrollers,'will-"produc forward drag at the smaller vso that-,rectification is assured. It lafging end of tli feller, to rectify.' the is also desirable'tliat. the smallest diameter ro ers'in-the bearings lofthe abutment 11 on the outer bearing!` In the accompanying drawings Figure member be not less than the bearing sur- 85 1 is a longitudinal; section of a crankpin face of the uter bearing member, and so it bearing showing' an embodiment of the inis desirable to construct the same of a vention.` Fig. 2 is a transversesection 'of the slightly larger diameter. In normal opera.- same. I' tion these flanges just touch or j ust clear the Referring to Fig. 1,t he bearing comprises abutments, and the parts are `thereby held 90 an inner bearing member 1, 'an outer bearagainst relative endwise displacement. It ing member '2, bearing rollers t",A rolling beis necessary that the inne-r faces of the., 40 tween said inner and outerv members, and flanges should be free from engagement with spacing rollers 4 betveen the bearing rollers. the bearing members so as not to interfere The inner member fis here shown as a with the relative longitudinal movement of 95 crank pin and the outer member 2 as the. the rollers required to effect rectification, as

' wrist or head therefor. but'the construction hereinafter described.

is capl ble of other applications. The s'paelt is assumed that the inner bearing meming rollers are smaller in diameter than the ber v1 turning in direction of the. full videa, roller bearing'wherein .sthe`bearing :bearing member has a groove 12 near eacl1 '6 5'- thetop, bottom orside pressure is taken by, whose outer wall forms abutment 11.` The mgwith means which,y l"Iier, sothat the contact is only atthe' outer .7 5 A bearing rollers and are guided so as not to arrow, the rollers revolving in the same di rub against either of the Abearing members rection, -but rot-ating op Ositelyf If the 1, 2 .by means of retaining rings 5, surroundroller skews, as shown in dotted lines, with 5() ing said rollers and running in necks 6 therethe righthandend lagging it will drift end` in, beyond the ends of rollers 3, and by wise in the outer bearing member,t.o\vard `'means of annular tracks 7 on the inner bearthe right, as shown b dotted arrow, and 105 ing member, on which said. rollers 4 roll.. bring the shoulderatat end into close engagement with the outer abutment. This] j' `with t e annular abutments ,llof the outer bearing member at one end of the-bearing in accordin and the abutments, but my invention is not secured by recessing the bearing members at flanges, the width of the grooves or recesses I* ably coateda with metal of different character engagement will take place at apart of the .main bearing portion ot the roller, and the `velo ed will tend to retard this leadin end oft e roller,`so that there isfa recti ing v tendency at-.'each end of the rollerg'jl'ith 'end''o the' skewed as stated. .The relative drift'of'the vroller and bearing member will bring. the.

VThe enlargement or flanges 8 of' the rollers` '.other. than those above described as engaging" to rectify' the rollers.

flanges is greater than the total clearance between the outside walls of the grooves and roller thatl is of larger diamllter and there. fore of greater peripheral speed than the res 'ect to the"inn'e r bearing-memberth'e ro er is rolljibackward, and' the left hand l'ler is thela'gging end if ange at the leftl hand end ofthe .'roller against the annular abutmentv 10 at that end, and on vaccount of the'larger diameter thus. brought into operation, will '.tend to make this end-of the roller roll-backward faster o'n the inner member, torectify the roller.'

take u the end thrust by engaging directly and the-annularabutments 10 of the inner. bearing member atlthe other end of the bearto the direction of end thrust. t is essential' that the bearing rollers and bearing members should be` provided `with means preventing engagementof the faces Such means are constituted-inthe present case by the flanges necessarilylimited thereto..- This elect is the inner side of the abutments, so as to 'be out of contact with the inner walls of the being such that the Atotal clearance or play' between the inside .walls ofthe grooves and flan es. T e inner and outer bearing members and the bearino and spacing rollers are preferfrom the body thereof and es )ecially with a metal which is less oxidiza le than such body portion. For. example, the bodyof such parts may he of steel and the coatingv of copper givinga softer surface that will be compacted by the rolling tofill inequali-v ties or of nickel which will present a harder thermore be coated with one metal, for exJ ample, copper and others with a different metal, for example, nickel.

'- What I claim is: 1. A' lroller bearing' having inner and outer'bearing members, the outer bearing member having abutments and rollers each having a bearing portion engaging both bearing'members', sald'rollers each provided with an lenlarged {iange near an end, the outer face of said flange enga `ng abutments of said bearing members, an the other face 'of the flange being free from engagement with the bearing members, and the smallest diameter ofA the engaged abutment bein a's large as the diameter of the bearing su acev vof the outer lbearing member.

-2..A rollerfbearig having inner and outerbearingmembers, one '..ofwhich 'has abutmentsbearing rollers having ay bearing .portion engaging with said bearing 'members t and provi n vvlthv a flange 4near` 1an" lend fof-1;

lar er diameter thanthebearing surfaceofi Y sai roller, the v outwar diy-.facingifiside'.y of lsaid flange' engaging withoue of said abut-f` ments, and'sald 4 bearingmernbers*bein Vre- .Y tessed so as tobe clearv lof the othersi e of lthe flange. f l A 3. A roller-bearinghavinginner and outer f meinbe"" "l i. and; rollers 'liaving' Qa vbearm ortion. engaging."4 with both bearing mem rs andf'pi'ovided with an. enlarged angefnear-an'end'adapted to en- Y gage with'thos'e'` walls oifsaid recesses which ace the mid-len li" of thevrollers, the other walls of recesses eing freefrom engagement with said flanges. v

A roller bearing havingfilinner .and outer bearing members, one of which has an 105' portion engaging with both ,the-.inner an abutment, 'bearing rollershaving a bearin outer bearing .fmembers,v saldi-rollers vided each witlialange'near anion *ofi y larger diameterthan thebearing surface of 110.

the roller, the outwardlylcing side of the flange .engaging "with said abutment 'one lflange being free `from"engagement 'with -either bearing member. 5. A 4roller bearing havinge'innerf'and bearing'member, and the 'other side of the.

roller i having a bearingy portion engaging.

bers, said bearing'roller having lan enlarged with both the inner and outer bearing mem 120 flange near an'end, the side ofthe flange v farthest frommid length of said roller being -free to engage with saidabutment on the inner bearing member, thefdiameter of the bearing surface of the inner bearing meinber being as'large as the diameter of said abutment, and the other side of roller flange being free.,from engagement with either bearing member.

.65 surface. Some of thesel members may' fursov . "1.1511 outer bearing members, ;the,1nnerbearing member hav1ng1..an abutment, a :bearing:

6,-A roller bearing having inn-er and'130 senese with both the inner and outer bea-ring menibers, said bearing roller having an enlarged flange near an end, the side ot the flange lfarthest from mid length of said roller flange.

being tree toengage withy said abutment on vthe outer bearing member, the diameter' of the bearing surface of the outer bearing meniber'being as large asthe diameter of said abutment,l and4 the other side of the roller Harige being free trom 'engagement with either bearing member.

7. n a roller bearing, inner and outer bearing members having recesses, and bearing rollers having a bearing portion engaging with both the inner and outer bearing members and provided with ay flange near an end of larger diameter than the bearing surface of rollers, said flange being free to engage with the Walls of the recesses in .both bearing members that face the midlengtli of roller, the'otlierwalls of the reeesses being free trom engagement with the S. A roller bearing having inner and outer bearingmembers With recesses, and bearing rollers having a flange near each end extending beyond the diameter of the bearing surface of said rollers and entering in said recesses, the bearing members being recessed so that the sides of the roller flanges andr'eeesses nearest mid-length of rollers are free from engagement with each other. f

.9. A roller bearing comprising inner and outer bearing members with cylindrical bearing surfaces, each of said members having an annular groove near each end and bearing rollers between said members and engaging said cylindrical surfaces, each roller having flanges extending withiny the h rooves in the inner and outer bearing mem bers, the total elearance between the inside walls et' the grooves and flanges being greater than the total clearance between the outside Valls et' the grooves and flanges, so that engagement will take place between said outside walls, the .inside walls tliereotI being tree from engagement with the ing members.

10. A roller bearing comprisingl an inner and outer bearing member with cylindrical bearingl surfaces, the outer bearing member having an abutment near each end, greater diameter throughout than the diameter of the bearing surtaee of said member, and the inner bearing member having an abutment near, each end, of less diameter throughout than the diameter of the bearing lsurface of said member, bearing rollers bes tween said bearing members and engaging the Cylindrical bearing surfaces thereof, and provided with flanges engaging the said abutments, the bearing members being re eessed at the inner side of said abutments to be out of Contact with the inner Walls of the fianges.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, lthis 17 th day of August, 1906.

' V- @Si TALD l?. ZAHN. In presence of- ARTHUR P. KNIGHT,

FRANK L. A. GRAHAM. 

